Rosado, 32, was the only worker on duty overnight. Deputies said she was shot to death.

Deputies said surveillance video from the store shows a man pulling his shirt up over his face. He is described as a light-skinned man, approximately 5-feet 10-inches tall, wearing blue jean pants and a dark T-shirt, deputies said in a news release.

After leaving the store, the man is seen fleeing west toward the northbound entrance ramp to Interstate 95 on surveillance video.

Razzi Enseri owns the Mobil store and said he's deeply saddened by Rosado's death. He said she has been working there for three years.

"It's unbelievable," Enseri said. "I don't know who did it. It's unbelievable. They killed her for no reason. That's sad. That's the only thing I can say, it's sad"

Enseri said in his four years as owner of the gas station, he hasn't had any trouble with criminals. He said Rosado often worked alone.

The victim's oldest child, 16-year-old Trysha Silva, said her mother was brave, hard working and was a familiar face and a friend.

"Ask anybody that goes to the gas station, nobody wanted to hurt her," said Silva. "They loved her. They loved her they used to go there because of her."

According to Enseri, the culprit did not take anything from the store.

Deputies continue to look into the killing. Anyone with information in the case should call Crime Stoppers at 1-888-277-TIPS.